M22
M22 — Disorder of patella
Non-billable headerICD-10-CM
M22 is a non-billable header ICD-10-CM code for disorder of patella. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- traumatic dislocation of patella (S83.0-)
Other codes that can never be billed with M22
These codes carry an Excludes1 note pointing at M22. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M22 alone.
- M94.2Chondromalacia
Risk adjustment
M22 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead M22
7 child codes. Green means billable.
Questions about M22
- Is M22 a billable ICD-10-CM code?
- No. M22 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M22 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other joint disorders (M20-M25).